Thrust is a rewrite of the classic Commodore 64 game of the same name, ported
to Un*x and MSDOS. The object of the game is to lift the Klystron Pod from the
bottom of a cave and return it safely to space. The Pod is very heavy (compared
to the ship), and this makes it tougher than it may seem. You must be careful
not to run out of fuel, crash into the cave walls, nor let the enemy artillary
outposts shoot you down.

Critical Mass (Critter) is an SDL/OpenGL space
shoot'em up game. Your world has been infested by
an aggressive army of space critters. Overrun and
unprepared, your government was unable to defend
its precious resources. As a last effort to
recapture some of the 'goodies', you have been
placed into a tiny spacecraft and sent after them.

Astro Battle is an online multiplayer space simulation game where players can design and pilot their space ships against each other. The spaceships are made up of modules. Modules are components that contribute some ability or property to the spaceship as a whole. Some examples of modules are bridges, thrusters, cannons, torpedo bays, reactors, and batteries. A Player can join an arena by challenging another player to a space duel or by joining a dedicated server (which can host several players at a time). Astro Battle also has a practice arena for testing ship designs offline.

xbill is a game that tests your reflexes as you seek
out and destroy all forms of Bill, establish a new
operating system that is very popular throughout
the universe, and boldly go where no geek has
gone before.

pydance is a dancing game written in Python, formerly named pyDDR. The
idea is simple. There's a floor mat with arrows, and the game scrolls
arrows up the screen to the beat while playing a song. When the arrows
reach the top of the screen (not sooner and not later), the player
hits the corresponding arrow on the pad, and given that it's hit on
time with the beat, points are scored. Based on how well the dance is
put together, s/he is graded at the end of the song. Both keyboard and
mat play are supported.